As i mentioned I saw somewhere on this site that had the cylinder volume, and as mentioned at 1" it was 209cc's, I figured the 4 cc dome, using the calculator below with straight numbers it appears fairly close, curious if the HP calculator on same website is reasonably close to. At least one thing, detonation shouldn't be to hard to avoid. Pretty funny that of the several calculators that technically should be the same end up close - but not exactly even when the same data is used. I did read somewhere about adding to the IVC but no where did I find that in the calculators - thanks for the replies and info - optimistically the engine runs out well and at least manageable on the street, and of course able to do a burnout.
The Free & Accurate Horsepower Calculator
